Basic Concepts of Chemistry

Dalton predicted

Dalton predicted Options (a) law of partial pressure (b) law of multiple proportions (c) law of diffusion (d) law of…

A bivalent metal has the equivalent weight of 12. The molecular weight

A bivalent metal has the equivalent weight of 12. The molecular weight of its oxide will be Options (a) 36…

Mass of 0.1 mole of methane is

Mass of 0.1 mole of methane is Options (a) 1.6 g (b) 0.1 g (c) 1 g (d) 16 g…

Which of the following undergoes sublimation

Which of the following undergoes sublimation Options (a) ZnCl₂ (b) CuCl₂ (c) AgCl (d) NH₄Cl Correct Answer: NH₄ClExplanation:No explanation available.…

Volume concentration of 1.5 N H₂O₂ is

Volume concentration of 1.5 N H₂O₂ is Options (a) 1.5 (b) 4.5 (c) 16.8 (d) 8.4 Correct Answer: 8.4Explanation:No explanation…

One gram mole of a gas at NTP occupies 22.4 L.This facts was derived from

One gram mole of a gas at NTP occupies 22.4 L.This facts was derived from Options (a) Law of gaseous…

In a metal oxide, there is 20% oxygen by weight. its equivalent weight is

In a metal oxide, there is 20% oxygen by weight. its equivalent weight is Options (a) 64 (b) 32 (c)…

Empirical formula of a compound is CH₂O.If its molecular weight is 180,

Empirical formula of a compound is CH₂O.If its molecular weight is 180,then the molecular formula of the compound is Options…

Number of molecules in one litre of water is close to

Number of molecules in one litre of water is close to Options (a) 55.5 x 6.023 x 10²³ (b) 18…

12 g of an alkaline earth metal gives 14.8 g of its nitride .Atomic weight of the

12 g of an alkaline earth metal gives 14.8 g of its nitride .Atomic weight of the metal is Options…